Opinion dynamics has been modelled through a variety of angles and techniques, for instance, kinetic models of opinion formation, mean-field analysis, agent-based models and epidemiological models. Individual opinion can be a number in an interval, such as [-1,1], where the two extremes represent the two opposing opinions; on the other hand, it can be a categorical variable, where each agent can be assigned to one of the few possible compartments (usually two).
According to the position with respect to the two opinions, and through interactions, individuals move their position, possibly influencing others: many elements can be employed in the model to drive the phenomenon, such as memory loss, the presence of leaders, the ability to convince others with a different opinion, varying levels of assertiveness, the fact that more extreme opinions are more difficult to change. [1]} [2]} [3]} [4]} [5]} [6]} [7]}
